
5. OPERATION
[Operation]
@ Enter a control condition.
Press [ -i t- 1. Next, enter an address and bit data, then press the <RETURN>
key. The cursor moves right.
Q Enter a function instruction.
Press the [functn] key. Next, enter SUB number 8, then press the <RETURN > key.
The function instruction diagram shown above appears.
&! Enter the oarameters of the function instruction.
First, enter the high-order 4-bit logical multiplication data of the first parameter, then
press the <RETURN > key. The cursor automatically moves downwards. Enter the
remaining three parameters one by one.
(c) Restrictions and notes on ladder creation
[Restrictions]
@ Restrictions related to the ladder 1 net (corresponding to the portion between the RD
and WRT instructions)
a) When the ladder 1 net exceeds 256 steps (as counted as steps in the
corresponding mnemonic program), the following message appears:
“A limit of 256 steps per net was exceeded.”
If there are more than 256 steps, no net is displayed.
@ Restrictions related to a ladder diagram display per screen
If an attempt is made to display more than 70 ladder net lines per screen, the error
described below occurs.
a) Symptom
(a-l) When there are more than 70 lines per net, the following message appears.
“The NET being created is too large.”
If 70 lines are exceeded, the following message appears, and no net is
displayed.
“A limit of 70 lines per net was exceeded.”
(a-2) When there are more than 70 lines totaled over two or more nets, the following
message appears.
“The NET being created is too large.”
If 70 lines are exceeded when totaled over two or more nets, the following
message appears for a net that is the current net when 70 lines are exceeded,
and the display of the current net is discontinued.
“The NET is larger than the editing buffer.”
In this case, specify the net to be displayed. rrsing the ladder diagram search
function (such as net number search).
b) How to obtain the number of lines per screen
Even if part of a net is displayed on a screen, all lines of the net are included in the
l-31